Digital volume control principle explanation

2015-01-15 01:40

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This article is a digital volume control principle explanation. The combination of text read schematics would be more effective to grasp this principle.This circuit can be used to replace your manual volume control in a stereo amplifier. In this circuit, push the switch S1 control forward (volume increase) operation of both channels while a similar switch S2 controls reverse (volume decrease) operation of both channels. A ready-made IC from Dallas semiconductor, DS1669 is used here.Features:• Replaces mechanical variable resistors• Electronic interface provides digital and manual control• Extensive differential input voltage range between 4.5 and 8 volts• Wiper position maintained in the absence of power• Low-cost alternative to mechanical control• Applications include volume, tone, contrast, brightness, and brightness controlThis circuit is very simple and compact requires few external components. Power can range from 4.5 v - 8 v. If you are the first to understand this principle, we might Duokanjibian. The principle is simple but effective.

Digital Volume Control

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